CVE-2026-70186: ASP.NET Core 10.0 10.0 to before 10.0.13; +4 more affected products

Affected technology

ASP.NET Core 10.0 · 10.0 to before 10.0.13
Microsoft

ASP.NET Core 8.0 · 8.0 to before 8.0.32
Microsoft

ASP.NET Core 9.0 · 9.0 to before 9.0.21
Microsoft

Microsoft Visual Studio 2022 version 17.14 · 17.14.0 to before 17.14.42
Microsoft

Microsoft Visual Studio 2026 version 18.10 · 18.10.0 to before 18.10.4
Microsoft

Component: Not specified by the source

Attack conditions (Vendor/CNA, CVSS 3.1): Network (remote) · No privileges required · No user interaction required

What an attacker can do

An unauthorized attacker can deny service over a network. Vendor/CNA’s CVSS 3.1 assessment (base score 7.5/10) rates confidentiality and integrity impact as none; availability impact as high.